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TR199600994A3 - Desulphurization method of molten raw iron. - Google Patents

Desulphurization method of molten raw iron.

Info

Publication number
TR199600994A3
TR199600994A3 TR96/00994A TR9600994A TR199600994A3 TR 199600994 A3 TR199600994 A3 TR 199600994A3 TR 96/00994 A TR96/00994 A TR 96/00994A TR 9600994 A TR9600994 A TR 9600994A TR 199600994 A3 TR199600994 A3 TR 199600994A3
Authority
TR
Turkey
Prior art keywords
molten raw
pig iron
raw iron
desulphurization method
slag
Prior art date
Application number
TR96/00994A
Other languages
Turkish (tr)
Other versions
TR199600994A2 (en
Inventor
- Ulrich Schmidt Hans
Holzhey Werner
Kruschke Eberhard
Wenzel Klaus
Original Assignee
Eko Stahl Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eko Stahl Gmbh filed Critical Eko Stahl Gmbh
Publication of TR199600994A3 publication Critical patent/TR199600994A3/en
Publication of TR199600994A2 publication Critical patent/TR199600994A2/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

A pig iron is desulphurised by mixing it with the slag remaining after tapping off a steel alloy from a furnace. The slag composition is, in %: 45-70 CaO; 2-17 SiO2; 4-8 MgO; 14-22 Al2O3; 0.5-6 FeO plus molten metal residue from the steel treatment phase. The pig iron is added at 1250-1400 degrees C and after an initial stirring an immersion lance is used to introduce the powder desulphurising agent together with a carrier gas which ensures further stirring.
TR96/00994A 1995-12-14 1996-12-12 Method of desulfurizing molten raw iron. TR199600994A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1995146738 DE19546738C2 (en) 1995-12-14 1995-12-14 Process for the desulfurization of pig iron melts

Publications (2)

Publication Number Publication Date
TR199600994A3 true TR199600994A3 (en) 1997-12-21
TR199600994A2 TR199600994A2 (en) 1997-12-21

Family

ID=7780154

Family Applications (1)

Application Number Title Priority Date Filing Date
TR96/00994A TR199600994A2 (en) 1995-12-14 1996-12-12 Method of desulfurizing molten raw iron.

Country Status (8)

Country Link
EP (1) EP0779368B1 (en)
AT (1) ATE202149T1 (en)
CZ (1) CZ290089B6 (en)
DE (2) DE19546738C2 (en)
ES (1) ES2160200T3 (en)
PL (1) PL181566B1 (en)
RU (1) RU2181382C2 (en)
TR (1) TR199600994A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT407260B (en) 1998-05-20 2001-02-26 Voest Alpine Ind Anlagen METHOD FOR PRODUCING STEEL MELT
DE19910398C2 (en) * 1999-03-03 2001-02-22 Mannesmann Ag Process for producing steel with a low sulfur content
CN102041353B (en) * 2009-10-23 2012-12-05 攀钢集团钢铁钒钛股份有限公司 Desulfurizer, preparation method thereof and desulfurization method adopting desulfurizer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB455042A (en) * 1934-03-07 1936-10-07 Electro Chimie Metal A process for dephosphorising and desulphurising steel
US4600434A (en) * 1985-07-24 1986-07-15 Armco Inc. Process for desulfurization of ferrous metal melts
DE3836549C1 (en) * 1988-10-27 1990-01-18 Krupp Stahl Ag, 4630 Bochum, De Process for desulphurising molten crude iron
DE4206091C2 (en) * 1992-02-27 1994-09-22 Anton Dr More Process for the desulfurization of molten iron with minimal slag accumulation and a suitable device

Also Published As

Publication number Publication date
DE19546738C2 (en) 1997-12-18
DE19546738A1 (en) 1997-06-19
ES2160200T3 (en) 2001-11-01
PL317477A1 (en) 1997-06-23
RU2181382C2 (en) 2002-04-20
DE59607078D1 (en) 2001-07-19
ATE202149T1 (en) 2001-06-15
CZ352696A3 (en) 1997-07-16
CZ290089B6 (en) 2002-05-15
EP0779368A1 (en) 1997-06-18
EP0779368B1 (en) 2001-06-13
TR199600994A2 (en) 1997-12-21
PL181566B1 (en) 2001-08-31

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